Abstract :
The author comments that Collin (see IEEE Antennas and Propagation Magazine, vol.45, p.119-124, 2003) points out some of the attributes of the constant-power equivalent circuit for a receiving antenna. However, he disagrees with the writer\´s statement that the internal power dissipated in the circuit can be equated to the reradiated, or scattered, power from the antenna. A reflector antenna is not at all like the slightly lossy dielectric bodies and the perfectly conducting targets treated in the classical literature. It is a highly "lossy" structure that absorbs nearly all the power incident upon it.
Keywords :
absorbing media; electromagnetic wave absorption; electromagnetic wave scattering; equivalent circuits; receiving antennas; Norton equivalent circuits; Thevenin equivalent circuits; constant-power equivalent circuit; internal power dissipation; lossy dielectric bodies; lossy structure; perfectly conducting targets; receiving antenna; reradiated power; scattered power; Antenna theory; Aperture antennas; Electromagnetic scattering; Equivalent circuits; Feeds; Helium; Lighting; Receiving antennas; Reflector antennas; USA Councils;
